Roof panel

ABSTRACT

An undulating roof panel of extruded plastic or metal having at one side a somewhat V-shape to provide a rain-protective cover portion and interlocking portion for engaging the side edge of a like, adjoining panel by first tilting said like panel for interlocking engagement. Said one side of the first mentioned panel is anchored by a clip to a framework, while the other side of the adjoining panel is nested thereon to provide double water drains for draining rain or melted snow.

ilnited States Patent 1191 Guzzo Dec. 10, 1974 [54] ROOF PANEL FOREIGNPATENTS OR APPLICATIONS lnventorl Ralph GHZZO, 1, Amity, 991,609 5/1965Great Britain 52 543 Pa. 15311 l,274,623 9/1961 France 52/546 Filed: J1973 382,959 12/1964 SwItzerland 52/546 PP 323,800 Primary ExaminerFrankL. Abbott Assistant ExaminerJames L. Ridgill, Jr.

[52] US. Cl 52/533, 52/537, 52/520,

52/548 [57] ABSTRACT [51] Int. Cl. E04d 1/06, E04d 3/365 An undulatingroof pane] of extruded plastic or metal [58] Field of Search 52/540-548,having at one id a what V-shape to provide a 52/520 5342 537rain-protective cover portion and interlocking portion for engaging theside edge of a like, adjoining panel by [56] References C'ted firsttilting said like panel for interlocking engage- UNITED STATES PATENTSment. Said one side of the first mentioned panel is an- 1,110,272 9/1914Probert 52/434 h r y a lip to a framework, while the h r side 1,510,61410/1924 Torrence 52/534 of the adjoining panel is nested thereon toprovide 2.258.509 0/1941 K y t t 52/534 double water drains for drainingrain or melted snow. 2,632,538 3/1953 Schmidt 52/545 3,110,371 11/1963Ridder 52/537 1 Clalm, 3 Drawmg Flgures ROOF PANEL This inventionrelates to a building panel and, more particularly, to a panel whichinterlocks with similar panels to form the roof (and possibly sidewalls) of a building.

An outstanding disadvantage of many existing types of roof paneling isthat they are relatively expensive to manufacture and involveappreciable time and difficulty in assembly.

Another disadvantage of presently used building panels, particularly forroof structures, is that no satisfactory means are provided forpermitting expansion and contraction as the result of wide variations inoutside temperature.

An object of the present invention is to provide a novel building panelwhich is devoid of the abovenamed disadvantages and which is relativelysimple and inexpensive to manufacture, also which provides for freeexpansion and contraction with temperature changes and interlocking withlike panels.

Another object is to provide interlocking panels that incorporate doublewater channels to drain away rain water or melted snow.

Other objects and advantages will become more apparent from a study ofthe description taken with the accompanying drawing wherein:

FIG. 1 is a transverse, cross-sectional view of a plurality ofinterlocked roof panels embodying the present invention;

FIG. 2 is a modification of the structure shown in FIG. 1 wherein flatbottoms are provided; and,

FIG. 3 is a further modification of the structure shown in FIG. 1wherein the panels are straight sided.

Referring more particularly to FIG. 1 of the drawing, numeral 1generally denotes a roof assembly comprising a plurality of like panelsembodying the present invention. Each panel is preferably of extrudedplastic material or, in some cases, of extruded light metal, such asaluminum, or possibly of alloy steel or steel with a suitable coating toprevent oxidation. Each panel comprises a bottom portion 2 and a topportion 2 which is integrally joined at 4 to a second bottom portion 3.The top portion 2 has an overhanging or cover portion 5 extending beyondthe joint 4 and which serves as a protective covering, as well asproviding room in space 6 for expansion of the end of lower portion 2 ofan adjoining panel, as shown in F IG. 1. The extremity of lower portion3 is anchored by a clip 7 which is fastened by any suitable fasteningmeans, such as a self threading screw 8 which is screw threaded intorafters or frame 9 of metal or wood. It will be understood that aplurality of clips 7 are provided in longitudinally spaced relationshipalong the edge of lower portion 3.

It should be noted, in assembly, that in order to interlock like panelsof any suitable length, one of the panels must be tilted, such as byraising portion 2' well above portion 2' of the anchored adjoining panelso that the end of panel 2 can be fitted into space 6. When assembled,the nested panel portion 2 and 3 form gutters or drains for drainingaway rain water or melted snow.

FIG. 2 shows a modification comprising a plurality of roof panels,generally denoted by numeral 11, each comprising a rounded top portion12 integrally joined at 15 to a flanged portion having a flat bottom 14.To the other end of portion 12 there is integrally formed a flat bottomportion 13 terminating in an upwardly and angularly extending flange 18.A protective or covering portion 16 forms an extension of top portion 12and provides a space 17 into which the flange 18 of an adjoining panelmay be projected when interlocking with like panels in side-by-siderelationship to form a roof assembly.

FIG. 3 shows a further modification comprising a pllurality of panels,generally denoted by numeral 21, each comprising a flat top portion 22which has a downwardly flanged portion terminating in a bottom portion23 and an angularly upwardly extending portion 24. The other end of topportion 22 is attached integrally at 26 to a channel shaped flangeportion having a flat bottom 25 and terminating in an upwardly andangularly flanged end portion 18.

After clip 7 is fastened by screw 8 to firmly hold portion 25 downwardlyagainst the surface of the rafter or frame 9, an adjoining panel may beinterlocked by first tilting, that is, raising the top portion 22thereof of the panel to be interlocked to allow the end portion 24 toextend into space 28 of the anchored panel.

In operation of each of the embodiments described in FIGS. 1, 2 and 3,the clip 7 firmly holds downwardly onto the rafter or frame work 9 aside edge of one panel. When the side ede of an adjoining panel whichextends into the space defined by the cover portion (such as space 6defined by cover portion 5 in FIG. 1), it will be noted that if there isa substantial increase in temperature, the adjoining panel portion 2which is nested in panel 3 is permitted to expand into said spaceAnother feature of the present invention is that the cover portion, suchas 5, protects against entrance of water from rain or melting snow andwhatever water that does collect will be received and drained away bythe somewhat trough shaped portions, such as 2 and 3 of FIG. 1; l3 and14 of FIG. 2; and 23 and 25 of FIG. 3.

Thus it will be seen that l have provided an efficient roof assembly andpanels therefor, which panels can be of either extruded plastic orextruded metal so that they can be constructed very quickly andcheaply,- also which panels are securely interlocked by the mere tiltingof an adjoining like panel.

While I have illustrated and described several embodiments of myinvention, it will be understood, that these are by way of illustrationonly and that various changes and modifications may be contemplated inmy invention and within the scope of the following claims.

I claim:

1. A plurality of roof panels having interlocked sides, each panelcomprising an outwardly projecting, substantially convex, central panelportion terminating in integral, substantially concave, trough shaped,flat bottomed side portions, a clip attaching the extremity of said sideportion to a supporting framework, an integral overhanging portionextending at an acute angle from where one of said trough shaped sideportions joins said convex, central panel portion so as to overhang,while spaced from and without contacting, the extremity of a troughshaped side portion of an adjoining panel after such adjoining panel istilted into position, to effect nesting of opposite trough shaped sideportions without impairing relative sliding movement therebetween, therebeing no connection between said nested trough temperature changes, anda clip fastening the extremity of the bottom nesting side portion tosaid framework.

1. A plurality of roof panels having interlocked sides, each panelcomprising an outwardly projecting, substantially convex, central panelportion terminating in integral, substantially concave, trough shaped,flat bottomed side portions, a clip attaching the extremity of said sideportion to a supporting framework, an integral overhanging portionextending at an acute angle from where one of said trough shaped sideportions joins said convex, central panel portion so as to overhang,while spaced from and without contacting, the extremity of a troughshaped side portion of an adjoining panel after such adjoining panel istilted into position, to effect nesting of opposite trough shaped sideportions without impairing relative sliding movement therebetween, therebeing no connection between said nested trough shaped portions orbetween said extremity and said overhanging portions, the upper troughshaped nested side portion being slightly shorter than the bottom one inorder to permit relative movement therebetween as the result ofexpansion or contraction from ambient temperature changes, and a clipfastening the Extremity of the bottom nesting side portion to saidframework.